Walker does an incredible job providing a rigorous overview of the voluminous research on the effects of sleep, while at the same time scaring the pants off of anyone who doesn't regularly get a decent amount of sleep. This book focuses more on the outcomes than the mechanisms here, instead reviewing the compelling research showing the deleterious effects of sleep deprivation on a whole host of health outcomes. Walker also discusses different classes of solutions to poor sleep with few easy answers. Overall, this book is a compelling read for anyone, from novices to experts, interested in health, productivity, or neuroscience. Highly recommend.